1118064384 has 144 divisors (see below), whose sum is σ = 3348807840. Its totient is φ = 372501504.

The previous prime is 1118064379. The next prime is 1118064419. The reversal of 1118064384 is 4834608111.

It is a happy number.

1118064384 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 0 + 643 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558874 + ... + 560870.

It is an arithmetic number, because the mean of its divisors is an integer number (23255610).

Almost surely, 2^1118064384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118064384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674403920).

1118064384 is an abundant number, since it is smaller than the sum of its proper divisors (2230743456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1118064384 is an frugal number, since it uses more digits than its factorization.

1118064384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1118064384 is about 33437.4697607340. The cubic root of 1118064384 is about 1037.9002209545.

The spelling of 1118064384 in words is "one billion, one hundred eighteen million, sixty-four thousand, three hundred eighty-four".